Stabilized nitrated starch.



' To all 'whom it may concern:

TE eras;

rjo so NEMOURS POWDER COMPANY, OF JERSEY.

FLETCHER B. HOLMES, OFWOODBURY, NEW- JERSEY AssiGNOR'iO'THEJE. I; DUePON'IjDE.

WILMINGTON, DELAWARE, A; CORPORATION OF' NEW- Be it knownthat I, FLETCHER B; HOL E a citizen of the United States, residing at W dbury, county of Gloucester, and State; of i ew Jersey, have invented a newand u'se ful Improvement in Stabilized Nitrate d';

Starch, of which the following is a full, clear,

and exact description.

The object ofv my invention is'tot-produce stable nitrated starch.

Nitrated starch may be used as an eXplo:

sive itself, or preter'ablyanay be used as a component part of an GXPlOSl-VG, such. as

where it is mixed with sodium nitrate, potassium nitrate, or some other oxygencarrier with or Without the addition of other ingredients. is that it is very unstable, being liable to de- The difficulty: with nitrated starch composition. l/Vhen SI ch nitrated .starch decomposes, vwhich it isliable to do at ordinary temperatures, it becomes liable to spontaneous combustion.

I have discovered that I can produce a -'stable nitratedstarch-by mixing with ni- "ammonium butyrate, ammonium st-earate,

trated starch the ammonium salt of any one of theorganic fatty acids: By the term or ganic fatty acids Iinten'd to include acetic acid and its hdmologues.

ammonium palmitate CH (CH C.OONH

Preferably -I use I can also use, in addition to ammonium palmitate, the'ammonium salts of other acids 0f the same series such as ammonium acetate CH COON H ammonium propionate om'omooomt,

etc. As stated before, I'prefer to-use ammonium palmitat'e, bu-tunless specifically claimed, 1 do not. intend to limit myself to that specific'aimnonium salt of an organic fatty acid.

Specification ofil iett ers Patent. I Application filed Ma er), 1907. Serial No. 3.14.624...

Pa tented Jaa. 7,190

forth. Thejmixing may be made'in any manner to produce a good mixture, "They". may. be mixed wet or dry and in any 'kind'ot' finelydividedpowdered condition in a bowl:

a mixer. Preferably I" mix. the twain a provided with stirrersor 'pa'ddl'es.

' TheamountofZthestabilizing agent to be 'mixed with thenitrated starch is preferabl from] twotto five per cent-., although I- have fused with success larger and smaller amounts. 31"" have foundthree percent. to givegoodre Having, now'fully described my invention] I what I claim and desire to protect by Letters. T9 I 1. A stable explosive consisting of a mix ture of nitrated' starch and-Pan animoinium'fl Y saltofan organlcfattyacid, the latter beingproportionas to stabilize thenitrated 2 A stable explosiveconsisting of amim- Patent is:

in such starch.

ture of nitrate'dstarch and 'from two toffive ercent. of an ammonium salt of an organic atty acid.

. 3. A stable explos ve consisting of at 111130.

ture of nitrated s't'archandammoniurn pain i tate, the latter being in such proportion asto stabilize the nitrate-d st arch .1

.4. Astableexpldsivefcbnsisting of a nix'g; ture of nitrated starch and" ro1n"two-to. fivelfpercent. of ammonium palmitate.'

In testimqnyof which invention, 'I: havej hereunto set luvhand, at Philadelphia, on-

this 15th day of May, 1907. q. p I

FLETCHER B. "HOLMES. W'itnesses: i

M. M. HAMILTON, E. E. WALL. 

